26001236745455 has 4 divisors (see below), whose sum is σ = 31201484094552. Its totient is φ = 20800989396360.

The previous prime is 26001236745403. The next prime is 26001236745541. The reversal of 26001236745455 is 55454763210062.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 26001236745455 - 2²⁴ = 26001219968239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2600123674541 + ... + 2600123674550.

It is an arithmetic number, because the mean of its divisors is an integer number (7800371023638).

Almost surely, 2^{26001236745455} is an apocalyptic number.

26001236745455 is a deficient number, since it is larger than the sum of its proper divisors (5200247349097).

26001236745455 is an equidigital number, since it uses as much as digits as its factorization.

26001236745455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200247349096.

The product of its (nonzero) digits is 6048000, while the sum is 50.

The spelling of 26001236745455 in words is "twenty-six trillion, one billion, two hundred thirty-six million, seven hundred forty-five thousand, four hundred fifty-five".